8266321 has 4 divisors (see below), whose sum is σ = 9447232. Its totient is φ = 7085412.

The previous prime is 8266319. The next prime is 8266331. The reversal of 8266321 is 1236628.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8266321 - 2¹ = 8266319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8266321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8266331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590445 + ... + 590458.

It is an arithmetic number, because the mean of its divisors is an integer number (2361808).

Almost surely, 2^8266321 is an apocalyptic number.

It is an amenable number.

8266321 is a deficient number, since it is larger than the sum of its proper divisors (1180911).

8266321 is a wasteful number, since it uses less digits than its factorization.

8266321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180910.

The product of its digits is 3456, while the sum is 28.

The square root of 8266321 is about 2875.1210409303. The cubic root of 8266321 is about 202.1951598831.

The spelling of 8266321 in words is "eight million, two hundred sixty-six thousand, three hundred twenty-one".